Insulation.



No. 758,165. PATENTED APR. 26, 1904 E. E. BEGHTOLD.

INSULATION.

7 APPLICATION FILED JUNE 2;, 1903.

v THE no ms PETE? cuj Pum'mumo. wnsnmm'om u c U E STATES.

' EDMUND E. BECHTOLD,

Patented April 26, 1904;

or CHICAGO, ILLINOIS;

INSUL TION.

SPECIEICATI'ON forming part of Letters Patent No. 758,165, dated April26, 90 I a lication filed June 22, 1903.

To all", whom it may concern: 1 Be it known that I, EDMUND E. BEGHTOLD,a citizen of the United States, residing at Chicago, in the county ofCook andfState of Illinois, have invented certain new and usefulImprovements in Insulation, ofwhich the following is a specification;

This invention relates to improvements in insulation, and while it ismore especially intended to be used for insulating canopies, such as areemployed for electric-light fixtures or combination xtures, from thewalls or f sponding-"parts throughout thediflt'erent views of'thedrawings.-

ceilings of rooms or other supports, yet it is applicable for insulatingother pieces or devices; and it consists in certain peculiarities of theconstruction, novel arrangement, and

' operation ofthe parts thereof, as will be hereinaftermore fully setforth and specifically claimed.-

One of the objects of the invention is to provide insulation which maybe carried in stock ready to be. applied to the canopy or' otherarticle, so as to effectually insulate it from its support. u

Another object is to so construct the canopy or other article to beinsulated that the insulating material may be applied thereto or securedin place thereon Without the use of brads or rivets.

A further object is to so construct the insulation when designed to beused as stock that it can be attached to the canopy or other devicewithout the use of brads or rivets.

Other objects and advantages of the invention will be disclosed in thesubjoineddescription and explanation.

In order to enable others skilled in the art to which my inventionpertains to make and use the same, I will now proceed to. describe it,referring to the accompanying drawings, in which Figure 1 is a view inside elevation of a portion of the wall of a building, showing a can-'opy secured thereto and insulated therefrom' by means ofinsulationembodying my invention.- Fig. 2 is an inner view, partly insection, of a portion of the insulating stock, showing it ready to beapplied to or secured on the rim of a canopy or edge of another device.Fig. 3 is a cross-sectional view of the insula- Serial No. 162,470.(Iflo model.)

tion and a portion of the canopy, showing the manner of securing the twotogether. Fig. 4:

the modified form of the-insulation, and Fig.

7 is an inner fragmental perspective view showing another modlfication.I

Like numerals of reference refer to corre- The reference-numeral 10represents the canopy, which is mounted on the fixture 11 so asto coverits juncture withthe wall, pipe,

or wires and which it is desirable to insulate I from the. wall 12 orother support in order to prevent the current becoming grounded onaccount of the moisture in the wall or support or by reason of itselectric conductivity.

In Figs. 2, 3, and 4 of the drawings Ihave shown one form ofmy'insu'lation, which comprises a strip of metal 13, which has in one ofits edges a series of slots 14, extending transversely therein to" nearits longithdinal center. The outer ends of the slots 14: are open, asshown, and have between them a series of openings 15, which-when the.metal is bent will register with a series of openings 16, ar-

. ranged in a longitudinal line nearthe middle of the strip 13, as isclearly shown in Fig. 4 of the drawings.

The stripl3 is bent to form substantially an S-shaped pieceincross-sectionthat is, it is bent longitudinally one. line at or nearthe inner ends of the slots 14, so as to form an inner portion 17, inwhich the opening 15 and slots 14 appear, and is then bent inthe-reverse direction to form an outer portion 18, between which and theintermediateportiou or part 19 is located a strip of iiber 20 or othersuitable insulating material.

When the strip 13 is thus formed-into acompound bend or S-shapedpiece,it is evident that the portions 17, 18, and 19 will lie approximatelyparallel with one another and that the openings 15 will register withthe openings 16, so that when the rim or edge of the canopy 10 is placedbetween the inner produced by means of an instrument placed:

in the openings 15, when by striking the instrument it is apparent thata portion of the metal forming the canopy will be forced outwardlythrough each of the openings 16, so as to be embedded in or engage theinsulating material'or fiber.

In Figs. and 6 I have shown amodification which consists in forming thecanopy 1O or other deviceto-be insulated near its r-imzor edgewhich willbe located near, the support with a compound, or reverse bends, soas toproduce substantially an. S-shaped figure in cross-section- In thismodification the piece 10 isprovided with a, series of slots 22 andopenings 23, arranged in a line near the inner ends of the slots andbetween, the same,- as shown. Thematerial forming thedevice 10 is bentback upon itself at about, thezmiddle of the slots 22, so as to form aninner portion 2a, and an intermediateportionv25, and is-then bentin thereverse direction to form an outer portion 26, between which and. theintermediate portion 25, is placed a-strip-of; fiber or other suitableinsulating material, which is held in-place by means of projections orin.- dentations'27 onthe intermediate portion25, formed by-aninstrumentinsertedin the-openings 23in the inner portion. By referenceto Fig. 5 it will be seenthat; when theportion l-0 is bent back upon.itself on a line at about the middle of the slots 22 one half of each ofsaid slots will be in the inner portion24= and the other halfin theintermediate portion 25 and will register with one another. By formingthe strip-1'3 and material 10 with the slots lfl and 22, respectively,it is evident thatthe material may be bent without. buckling orcrimping, so as to conform to the desired shape, and it is for thispurpose; that I employ said slots; but Ido not desire to be limited totheir use, as I may sometimes omit them.

In Fig. 7 I have shown another modification, which consists in employingthe same construction asshown in Figs. lgto 4:, inclusive, and abovedescribed, except thatthe insulating material 20, Whichin this instanceis preferably of mica, is provided on its edge adjacent to the wall or,support with a, protecting strip. or cap which is bent longitudinally toform reverse bends, so as to produce an inner portion 28, an outerportion 29, and

1 an intermediate portion 30, as shown.

The outer edge of the insulating material islocated between the outerportion 29 and:

the intermediate part 30 and is held therein by depressed portions ofthe intermediate part produced by an instrument inserted in the openings31 inthe inner portion of the protecting-strip. The object of this stripis to strengthen the mica or other insulating materials.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. As an improved article of manufacture, insulation comprising apiece'bent to form an inner, an outer and an intermediate portionsubstantially in parallelism, the inner portion being provided withtransverse slots, and a piece of insulating material located between theouter and intermediate portions, the said intermediate portion-beingprovided with projections-v to engage the insulating material,substantially as described.

2. As an improved article of manufacture,

insulation comprising a piece having a series of transverse slots and anumber of openings arranged in two longitudinal and parallel rows, thesaid piece being bent longitudinally to form an inner-,-an outer and anintermediate portion substantially paraglel with one. another, andsothatone of. the rowsof openings and the slotswilllbe located in theinner portionand theother row of openings will be in the intermediateportion and will register with the first-named row, and insulatingmaterial located between the outer and intermediate portions,substantially as described.

3. As an improved article of manufacture, insulation comprising a piecebent to form an inner, an outer and anintermediate portion substantiallyparallel with one another, the inner portion being providedwith trans?verse slots, and a piece of insulating material located between theouter and. intermediate portions, the intermediate portion beingprotially as described.

' a. As an improved article of manufacture, lnsulation comprlslng apiece bent to form an inner, an outer and an lntermediate portlonsubstantially parallel with one another, the

inner portion having a series of slots and a number of openings locatedbetween the slots, a piece of insulating material located between theouter and intermediate portions, substantially as described.

EDMUND E. BECHTOLD. Witnesses:

CHAS. O. TILLMA-N, A. GUsTAFsoN.

